document.write( "Question 570802: How many kilos of tea worth Rs.72 per kg should be mixed with 10kg of tea worth Rs.90 per kg to produce a mixture which will cost Rs.78 per kg \n" ); document.write( "
Algebra.Com's Answer #367788 by mananth(16946)![]() ![]() You can put this solution on YOUR website! ---------------- Price ---------------- quantity \n" ); document.write( "Tea type I 90 ----------------10 pounds \n" ); document.write( "Tea type II 72 ----------------x pounds \n" ); document.write( "Mixture 78 ---------------- 10+x pounds \n" ); document.write( " \n" ); document.write( "sum of individual components = quantity in mixture \n" ); document.write( "90*10+72x=78(10 +x) \n" ); document.write( "900+72x =780+78 x \n" ); document.write( "72x -78 x=-120 \n" ); document.write( "-6x=-120 \n" ); document.write( " x= -120 / -6 \n" ); document.write( " x= 20 \n" ); document.write( "20 pounds of Tea type II costing Rs. 72 has to be added \n" ); document.write( "m.ananth@hotmail.ca \n" ); document.write( " \n" ); document.write( " |